Oil-burner



WI H. COCHRAN.

OIL BURNER. APPLICATION FILED JULY 18. |919.

1,325,620. Patented Dec. 23,1919.

UNITED STATES PATENT OFFIOE.

WILLIAM R. COCHRAN, 0F DELPHOS, OHIO.

OIL-BURNER.

To all whom it may concern.'

Be i-t known that I, WILLIAM R. COCHRAN, a citizen of the United States, and a resident of Delphos, in the county of Allen and Sta-te of Ohio, have invented certain new and useful Improvements in Oil-Burners; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same. Y

My invention relates to an improvement in oil burners adapted for attachment to `heating and cooking stoves, and is designed more particularly as an improvement on the construction disclosed in my application No. 260,082 led October 29, 1918.

The object of the present inventionis to provide means whereby ,the burner tubes may be readily and quickly gotten at and cleaned in the event they become clogged, without disconnecting them from the fuel supply pipe.. A further object is to provide `a burner made in sections that may be readily and quickly assembled and taken apart for cleaning without disconnecting the burners from the fuel supply pipe.

With these and other ends in view my invention consists in the parts and combinations of parts as will be more fully explained and pointed out in the claims.

In the accompanying drawings, Figure 1 is a view infront elevation of a burner embodying my invention; Fig. 2 is a plan view of the same; Fig. 3 is a view in transverse` vertical section approximately at the center of the burner. and Fig. 4 is a view in perspective of the back plate.

1 represents the base of the burner attachment, consisting of a rectangular metal plate provided at its outer edges with a continuous integral flange 2 suficiently high to hold any oil that may escape atrthe start.

The rear edge of the plate is cut away or reduced in width adjacent its center as at 3, and the flange at this point is turned forwardly as at 4 to form a socket for the lower edge 5 of the back plate 6. The flange 2 at the portion 4 thereof, is alsoslightly higher than the remaining portion so as to provide against any overflow of fuel oil on the thickened central portion 7 of the base 1. This thickened portion 7 is located under the burner opening of the combined air pipe and mixing chamber, and if'of a size and shape toy retain Sucient fuel in a thin .film for VSpecification of Letters Patent. Patented Dec', 23, 1919;, Application led July 18, 1919. Serial No. 311,720. I

starting the generation of vapor, and for de,- flecting the flame laterally and upwardly:

The combined air supply pipes and mixing chamber 8, consists of two air pipes. orl

the mixed air and vapor as. it issues-from the lower open end of member 8b strikes the thickened portion ofthe base and is deflected outwardly. The integral air pipesl 8zl` Vand mixer 8b are hollow throughout their lengths for the free passage of the air which enters at the two outer ends of the sidey members 8a, and is supported against accidental displacement bythe circular flanges 10 surro`un'ding the openings 9 in base 1, and also by the yfuel pipes which are secured to the fb-ack plate- '6 and pass into the combined ai-r pipes' and mixer 8 at the meeting point of the air. pas'- sages in the two members The back plate 6 is provided adjacent its center with a bottom flange 6a projecting forwardly intoy the space formed by curve 4 of the edge flange 2 of the base 1, andl the extreme lower edge 5 -of said plate rests within the cut away portion 3 of the base plate. V The sides of the plate 6 are curved as shown and rest at their lower edges 'on the seats 11 formed integral with the base plate at the rear of the flange 2, the, said s latter are connected at their lower endsat the rear side of the plate with the fuel pipes 12 and 12a,l each of whichis provided with a valve 13 for` controlling the flow of fuel oil through the same.

The. fuelducts in the back plate extend upwardly :throughout the length of'` the thickened central portion of the latter and open at the front for the. attachmentoffthe burner tubes 15 and 15a, one of' which is for ordinary use and the otherfor emergency, when extra or quick. heatingl is necessary. The burner tube 1,5 slow/ted approximately `the emergency tube 15a over the center of the base plate and the emergency burner tube 15a is at the side of the center and both pass into the opening 16 formed in the top of the member 8 so as to discharge immediately into the mixer section 8b of said member 8. Each burner tube 15 and 15a is provided with a spray nozzle or opening 17 for discharging the fuel downwardly, and is also provided at the top in line with the openings in the spray nozzles, with openings 18 normally closed by the removable plugs 19, which, when the spray nozzles 17 become choked or fouled can be removed thus exposing the f'uel discharge openings 17 which may then be cleaned with a pin or other device. The burner tubes 15 and 15b which are screwed to the back plate 6 terminate within the opening 16 in the mixing tube 8, which opening is normally closed by the removable section 20, having openings for the plugs 19. The removable section 2() is held in place by the plugs 19, which as before explainedl are forced, or may be screwed into the fuel pipes 15 and 15a. Y

Thebase 1 is adapted to be entered and supported in the fire pot of an ordinary coal or wood burning stove, and is connected up to a fuel supply pipe which supplies liquid fuel from a reservoir located adjacent the stove. By opening valve 18, the fuel enters the burner tube 15 and drips onto the thickened portion 7 of the base 1. By igniting the fuel on the base, the heat therefrom soon heats'up the fuel in pipe 15 and in the back plate 6 thus vaporizing the fuel in said parts, and as the vapor issues from the nozzle 17 it is ignited by the burning fuel oil. The heat from the burning vapor and air is suf iicient to continue the vaporization of the fuel in the back plate and pipe 15, and as the parts heat up, currents of air are induced up through the openings 9 in the base member l, through the members 8a of the tube 8 to mixing section 8* where the air is mixed with the vapor as it issues from the burner tube and is burned with the said vapor. As the walls of Jche air tubes 8EL become highly heated by the burning air and vapor, the air in its passage to the mixing chamber, also becomes highly heated and is put in a condition to thoroughly commingle with the vapor generated in the burner tube 15. The mixed air and vapor, burning at the lower open end of the mixing' chamber 8b is projected against the thickened section 7 of the base and is deflected by the latter into a ring like flame which is sufliciently intense for heating or cooking purposes. When quick or intense heating is desired may be opened and thus supply additional vapor to the flame.

By constructing the back plate independently of the base plate and detachably connecting the burner tubes to the air tubes, the

parts can be readily 'and quickly taken apart for cleaning` and quickly reassembled without the use of any tools. Again the attachment being a unitary structure wholly independent of the stove with which it may be used, can be removed and replaced in the fire pot without; the employment of skilled labor and when in place can be set on the grate or grate supports or if desired on bricks or other supports resting on the grate.

It is evident that many slight changes might be resorted to in the relative arrangement of parts shown and described without departing from the spirit and scope of my invention. I-Ience I would have it understood that I do not Wish to conne myself to the exact constr-uction'and arrangement of parts shown and described but Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is

1. An oil burner attachment for stoves consisting of a base member having air openings through the same adjacent its ends, a member having upwardly extending air ducts at its ends which terminate centrally in a downwardly projecting member open at its lower end, a back plate removably seated on the base member and carrying a burner tube, the latter discharging into said downwardly projecting member, and an oil supply pipe attached to said back plate and communicating with the burner tube. l

2. An oil burner attachment for stovesconsisting of a base member having a continuous edge flange and air openings adjacent its ends, a member having air ducts communicating with the openings in the base member and removably seated on the latter, the said air ducts terminating in a. down wardly projecting centrally located burner member, a back plate removably seated on the base plate in rear of the flange on the latter, and provided with an oil duct, a burner tube carried by said back plate and terminating within said burner member and an oil supply pipe communicating with the duct .in the back plate for supplying oil 'to the burner tube.

3. In an oil burner attachment for stoves, the combination of a base plate having a continuous flange around its upper outer edges and also provided with an opening near each end, a removable member having air ducts communicating with the openings in Jdie base, the said air ducts terminating in a downwardly projecting mixing tube and burner member, a removable back plate hav-v ing an oil duct therein, a burner tube attached to said back plate and communicating with the oil duct, the said burner tube having a spray nozzle discharging into said mixing tube and burner member and also having an openingfin line with said nozzle,

a plug removably closing said opening, and an oil supply pipe connected with the oil duct in the back plate.

4. ln an oil burner attachment for stoves, the combination of a base plate, an air pipe and mixer, a removable back plate having an oil duct therein, a burner tube carried by said back plate and provided With a spray nozzle and with an opening in line With said nozzle, the said nozzle being Within the mixer portion of the airA pipe, a removable plug for closing the opening in the burner tube and passing through the air tube so as to be accessible from the outside, and an oil supply pipe connected with the oil duct in the back plate.

5. In an oil burner attachment for stoves, the combination of a base plate, air tubes terminating in a mixing tube, a back plate having oil ducts therein, two burner tubes carried by said back plate and terminating Within the air ttube over the mixing tube and oil supply pipes connected With the oil ducts in the back plate. Y

In testimony where-of, I have signed this specification in the presence of two subscribing Witnesses.v

WILLIAM a. COCHRAN.

Witnesses CLnoRA PARSELL,

DoRI MARGUERET. 

